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The best way to do this is to factor both numbers.

2940 = 2 * 2 * 3 * 5 * 7 * 7

3150 = 2 * 3 * 5 * 5 * 7

Now take the ones that are common:

2 * 3 * 5 * 7. That's 210

to check, you can take the unused factors.

For 2940 that's 2 * 7 = 14 and 14 * 210 = 2940

For 3150 that's 3 * 5 = 15 and 15 * 210 = 3150

The 14 and 15 also tell us we have it right since they share no common factors.

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15y ago

What else can I help you with?